To be the one and only.

The MONO brand was born in 1963.
The launch of the high-end pencil MONO marked the beginning of the brand.

The brand name MONO originates from the Greek word monos whose meanings include “only” and “unique”.
The name characterizes the innovative pencil lead containing 8 billion particles per square millimeter created in a project launched for the improvement of pencil leads in 1949.

The eraser initially came with pencils as a free gift.

In 1967, Tombow released MONO 100, the high-end model of MONO, to commemorate its 55th anniversary.

MONO 100 has the touch, strength, and depth that match Tombow’s ideal features. One piece of plastic eraser, which was very rare at that time, was in pair with a dozen of pencils to demonstrate its ability to remove marks drawn by the pencil.
This eraser gained popularity for its good erasing performance, and after many requests were made for MONO Eraser to be sold, Tombow then decided to sell the eraser separately on its own.

The birth of MONO Eraser.

In 1969, MONO Eraser in a tricolor sleeve of blue, white, and black came to market.
The three-color flag design was for the purpose to make the little erase outstanding.
The beautiful and memorable stripe design, which has not changed for over 50 years, has become an icon of erasers used by many people in Japan as well as in the rest of the world.

The unique MONO Series, including MONO Eraser, is in a constant state of evolution along with the changing times while reflecting the original concept of being the one and only pencil and eraser.